Outdoor Warning System

The City of Coppell Outdoor Warning System consists of nine outdoor warning sirens strategically located throughout the city (see map). As the name indicates, the Outdoor Warning System sirens are designed to warn people who are outside. When you hear the sirens, you should immediately seek shelter inside and seek information.

The sirens may be activated for a number of reasons, including (but not limited to): The National Weather Service issues a severe thunderstorm warning with the phrase, "destructive winds in excess of 70 mph (or higher) are likely with this storm"; and/or "Destructive hail, 1.25" or larger is likely"; and/or The National Weather Service issues a Tornado Warning for Dallas, Tarrant or Denton County that MAY impact the city of Coppell; and/or Tornadic activity has been reported by a reliable source in or approaching the city of Coppell; and/or Hazardous Chemical Emergency; and/or Other emergencies, as deemed necessary by city administration.

The sirens may be activated for a number of reasons, including (but not limited to):

The National Weather Service issues a severe thunderstorm warning with the phrase, "destructive winds in excess of 70 mph (or higher) are likely with this storm"; and/or

"Destructive hail, 1.25" or larger is likely"; and/or

The National Weather Service issues a Tornado Warning for Dallas, Tarrant or Denton County that MAY impact the city of Coppell; and/or

Tornadic activity has been reported by a reliable source in or approaching the city of Coppell; and/or

Hazardous Chemical Emergency; and/or

Other emergencies, as deemed necessary by city administration.

When the Outdoor Warning System sirens sound - Seek Shelter & Seek Information:

Immediately, seek shelter inside,
Listen to the NOAA weather radio for additional information and specific instructions. (If a NOAA weather radio is not available, try local television or radio stations; please, DO NOT call 9-1-1 to inquire about siren activation.)

Once activated, the sirens will continue sounding a steady tone for three minutes and may continue to sound intermittently during the threat.

The Outdoor Warning System is tested on the first Wednesday of every month at 1:00 p.m.

In the event that inclement weather is in the immediate area or forecast, the test may be postponed until the next scheduled test date.

Questions regarding the Outdoor Warning System may be directed to Brad Simpkins at 972-304-3507.

Coppell Siren Locations

View Coppell Outdoor Warning Siren Map in a larger map